Vector-borne disease

This early-stage trial is testing a new vaccine called HydroVax-001B WNV to see if it is safe and triggers an immune response against West Nile virus, a mosquito-borne disease. About 30 healthy adults aged 18 to 49 will receive either the vaccine or a placebo. The study will comp…

This early-stage trial tests a new malaria vaccine called PfSPZ-LARC2 in up to 22 healthy adults who have never had malaria. The vaccine uses live but genetically weakened malaria parasites that stop developing late in the liver, aiming to trigger a stronger immune response than …

This Phase 2 study tests a new yellow fever vaccine (vYF) against the current licensed vaccine (Stamaril) in 690 healthy adults aged 18-60 in Europe and Asia. Participants receive one shot, and researchers measure immune response and safety over 5 years. The goal is to see if the…

This early-stage trial is testing a new vaccine called LASSARAB, designed to protect against Lassa fever, a serious viral illness. The vaccine uses a modified rabies virus to deliver the Lassa antigen and includes an adjuvant to boost the immune response. 55 healthy adults will r…

This study tests a new Lyme disease vaccine (VLA15) in about 200 healthy adults aged 18 to 44. Participants receive five shots over two years—four of the vaccine and one of salt water—to see if different timing schedules are safe and produce a strong immune response. The goal is …

This early-stage study tests whether giving the R21/Matrix-M malaria vaccine in a new, escalating-dose schedule is safe and creates a strong immune response. It involves 36 healthy adults in the UK who have never had malaria. The goal is to find a better way to protect people fro…

This study tests two experimental malaria vaccines in 360 children aged 5 to 36 months in Burkina Faso, a country where malaria is common. The vaccines aim to prevent malaria caused by the Plasmodium falciparum parasite. Researchers will check how safe the vaccines are, how well …

This study tests two experimental vaccines designed to stop the malaria parasite from spreading from person to person. The vaccines target the parasite's development inside mosquitoes, so vaccinated people who get bitten are less likely to pass the infection on. The trial involve…

This study tests the R21/Matrix-M1 malaria vaccine in 330 healthy women aged 18–35 in Mali who may become pregnant. Participants receive two or three doses of the vaccine or a placebo, and are followed for two years to check safety, immune response, and protection against malaria…

This large-scale study tests the R21/Matrix-M vaccine to prevent malaria in 4,800 children aged 5-36 months living in Africa. The vaccine aims to protect against the most dangerous form of malaria. Researchers will measure how well it works and check for side effects over one yea…

This phase 3 trial is testing whether a new formulation of Takeda's dengue vaccine (TDV) works as well as the current approved version. About 496 healthy adults aged 18-60 who have never had dengue will receive two shots three months apart. The main goal is to compare immune resp…

This study will track 1200 people in Brazil who received the VLA1553 chikungunya vaccine as part of a pilot program. Researchers will compare how many vaccinated and unvaccinated people get chikungunya to see if the vaccine works in everyday life. The goal is to understand the va…

This observational study will follow 5,000 people who received the VLA1553 chikungunya vaccine as part of a pilot vaccination program. Researchers will monitor for specific safety concerns like chikungunya-like reactions, heart problems, and arthritis over 60 days. The goal is to…

This study was designed to test a vaccine called VLA1553 to protect healthy children aged 1 to 11 years from chikungunya, a virus spread by mosquitoes. The plan was to give the vaccine or a comparison shot to over 3,000 children and check for immune responses and safety. However,…

This Phase 3 trial follows adults who previously received the VLA1553 chikungunya vaccine to see how long their antibodies last and to monitor long-term safety. About 363 participants are being tracked for up to several years. The goal is to determine if a single shot can provide…

This study tests a new malaria vaccine called SUM-101 in 69 healthy children and infants aged 5 months to 5 years in Burkina Faso. The goal is to see if the vaccine is safe and triggers a strong immune response. Participants receive three doses, and some infants also receive a ra…

This Phase 2 trial tests a new vaccine called ChAdOx1 RVF against Rift Valley fever in 240 healthy adults in Kenya. Participants receive either one or two doses of the vaccine or a rabies vaccine as a control. Researchers will check if the vaccine triggers a strong immune respons…

This Phase 2 trial tests a new vaccine called MVA-BN-WEV to prevent two types of equine encephalitis (Eastern and Venezuelan), which are rare but serious brain infections spread by mosquitoes. The study involves 411 healthy adults aged 18-50 and aims to find the best dose and dos…

This study tests a new oral antiviral drug, ARN-75039, for treating Lassa fever, a serious viral illness common in West Africa. About 135 hospitalized adults will receive either a high or low dose of the new drug or the standard IV treatment, ribavirin, for 10 days. The goal is t…

This study aimed to test a drug called IC14 in adults with early dengue fever to see if it is safe and could help reduce symptoms and viral levels. It was designed for people in areas where dengue is common, but the trial was withdrawn before any participants were enrolled. No re…

This study tests a drug called clofazimine for people with a chronic lung infection caused by Mycobacterium avium complex (MAC). The goal is to see if adding clofazimine to standard treatment helps clear the bacteria from sputum and improves walking ability and fatigue. About 102…

This study tests three antibiotic regimens for scrub typhus, a bacterial infection spread by mites. Researchers compare 7 days of doxycycline, 3 days of doxycycline, and 3 days of azithromycin in 177 hospitalized patients aged 15 and older. The goal is to see which treatment clea…

This study tests whether the drug benznidazole can cure chronic Chagas disease in children aged 2 to 18. All 178 participants receive the drug, and their results are compared to a historical placebo group. The main goal is to see if the infection clears based on blood tests over …

This study tests a special treatment for red blood cells that aims to kill the Zika virus, making transfusions safer. About 692 people who need blood transfusions will receive either treated or standard blood. The goal is to see if the treated blood works just as well and is safe…

This trial compares two new types of insecticide-treated bed nets against standard nets to see if they better prevent malaria in children aged 6 months to 10 years in central Côte d'Ivoire. About 1,650 people are taking part across multiple villages. The new nets contain either a…

This study looks at whether a special team of doctors and nurses can treat adults with suspected infections at home, instead of sending them to the hospital. About 500 people will be randomly assigned to either standard hospital care or home-based care from a mobile response team…

This study tests whether adding a daily nutrient supplement (SQ-LNS) to monthly malaria prevention visits can reduce both malaria and malnutrition in children aged 6-24 months in Burkina Faso. Researchers will compare malaria rates and nutritional status between children receivin…

This study looks at whether giving a rectal gel (rectal artesunate) followed by three days of malaria pills works as well as the standard injected treatment for young children with severe malaria. It involves about 2,000 children aged 6 months to 5 years in remote areas of Zambia…

This study tests whether anakinra, an anti-inflammatory drug, can help people with severe dengue who have dangerously high inflammation. About 160 adults and children will receive either anakinra or a placebo for four days. The goal is to see if anakinra reduces organ failure and…

This study tests if taking moxidectin twice a year is safer and more effective than once a year for treating river blindness, a parasitic disease. About 323 people in the Democratic Republic of Congo will receive either moxidectin or ivermectin annually or biannually. The goal is…

This study tests four different drug combinations in 300 adults with onchocerciasis (river blindness), a parasitic disease. Participants first receive ivermectin to clear skin and eye parasites, then get one of the new combos. The goal is to see which combo is safest and most eff…

This study looked at how two different malaria drug combinations work in children with uncomplicated malaria in Zambia. The goal was to see how well the drugs clear malaria parasites from the blood and prevent new infections for up to 9 weeks. About 182 children took part, and re…

This phase 3 trial tests whether methotrexate, a drug used for rheumatoid arthritis, can reduce joint swelling and pain in people with chronic arthritis caused by chikungunya virus. About 150 adults in Colombia will receive either methotrexate or a placebo for 6 months. The goal …

This expanded access program offers SkinTE, a treatment made from a small piece of the patient's own healthy skin, to people with Wagner 1 diabetic foot ulcers. The goal is to see if applying these skin cells directly to the wound can help it heal. The program also collects safet…

This study tests whether papaya leaf extract syrup can raise low platelet counts in children aged 2–12 with dengue fever. One hundred children will receive either standard care alone or standard care plus the extract for three days. Researchers will compare platelet changes and w…

This study compares a new device, cureVision cV, to an existing one (MolecuLight i:X) to see if it can accurately detect moderate to high levels of bacteria in wounds. About 100 adults with various wound types (like diabetic foot ulcers or surgical wounds) will be enrolled. The g…

This study evaluates a new blood test called Xpert Tropical Fever that can quickly detect several tropical diseases like malaria, dengue, and Zika from a small blood sample. Researchers will enroll 2,500 people with fever symptoms to see how accurate the test is compared to stand…

This Phase 1 trial in Mali will test the safety of the PfSPZ malaria vaccine in 400 healthy pregnant women aged 18-34. Participants will receive three injections of either the vaccine or a placebo. The study will monitor both mothers and their infants for up to a year after birth…

This Phase 3 trial in Uganda tests whether giving young children monthly malaria prevention medicine (dihydroartemisinin-piperaquine) from 8 weeks to 1 or 2 years of age helps them develop stronger immunity against malaria later. 924 children are enrolled and followed until age 4…

This early-stage study tests whether a single injection of a new antibody, JST-010, is safe in healthy adults aged 18 to 55. The goal is to prevent pneumonic plague, a rare but serious lung infection. Researchers compare the antibody to a placebo and monitor participants for one …

This study tests whether screening pregnant women for malaria with a highly sensitive rapid test during the first trimester, followed by treatment if positive, can improve newborn health. Over 2,000 women in malaria-prone areas will be compared to those receiving usual care. The …

This study aimed to see if sending health workers to find malaria cases in high-risk villages and among forest workers could lower malaria rates better than usual care. It planned to track infections over 18 months in southern Laos. However, the study was withdrawn before any par…

This large study in Sierra Leone is testing whether giving children an antibiotic (azithromycin) along with malaria prevention medicine during their regular vaccine visits can lower the number of deaths in children under 5. Over 20,000 children are taking part. The goal is to fin…

This early-stage trial is testing the safety of a new drug combination called IDB-011 in 40 healthy adults. The goal is to see if it is safe and how the body processes it, as a first step toward possibly preventing Rift Valley Fever, a viral disease spread by mosquitoes. Particip…

This study tests whether giving antimalarial drugs to entire communities can reduce malaria transmission. About 18,000 people in 50 villages in Senegal will take part. The goal is to clear hidden malaria parasites that standard treatments miss, especially during the dry season.

This study tests whether giving school children preventive malaria medicine can reduce infections not only in them but also in younger siblings at home. About 1,000 students in rural Malawi will receive either one of two drug combinations or no preventive treatment. Researchers w…

This study tests the safety of an experimental medicine called L9LS in infants aged 1 to 12 months in Mali. It also looks at how L9LS affects the immune response to a malaria vaccine called R21/Matrix-M. The goal is to find a better way to prevent malaria in young children.

This small study is testing Corplex P, a device made from donated human umbilical cord tissue, to see if it helps heal wounds that won't close on their own, like diabetic foot ulcers. Ten people will receive the device as part of their standard wound care. Researchers will track …

This study tests a gentle electrical stimulation of the vagus nerve in the ear (taVNS) to reduce chronic joint pain in the legs caused by Chikungunya fever. 51 adults with pain lasting at least 3 months will be randomly assigned to taVNS, standard TENS, or a sham device. The goal…

This study looks at HIV-negative people who get opportunistic infections—illnesses that usually only affect those with weak immune systems. Researchers want to find out if these patients have unusual antibodies that block a key immune signal. Up to 224 adults in Thailand and Taiw…

This study explores how low-level laser therapy (LLLT) affects skin stiffness and thickness. Researchers will use a special imaging system to track tiny skin movements in 20 healthy adults. The goal is to find the best laser settings for future wound healing treatments.

This study tests a new AI-powered toolkit designed to help public health officials at local CDC offices respond more quickly to emerging infectious diseases such as COVID-19, mpox, influenza, and dengue. The toolkit combines data analysis, risk assessment, decision support, and e…

This study tracks side effects and severe dengue cases in 2,000 people who already got the QDENGA dengue vaccine in Malaysia. No new vaccine is given—researchers simply collect health data from participants. The goal is to understand real-world safety and whether vaccinated peopl…

This study tracks how the malaria drug artemether-lumefantrine passes from a breastfeeding mother into her breastmilk and then into her nursing infant. Researchers will take blood and milk samples from 30 mother-infant pairs in Uganda over two weeks. The goal is to understand dru…

This study aims to improve how we predict and prevent dengue outbreaks by looking at how people move around the city. Researchers in Cuba will collect information from 810 residents about their daily travel, along with mosquito and weather data. The goal is to build better comput…

This study reviews the records of up to 800,000 people who received the TAK-003 (Qdenga) dengue vaccine at VNVC centers in Vietnam between September 2024 and September 2025. Researchers will look at age, sex, location, and vaccination history to see who got the vaccine and how. N…

This study was designed to see if giving a single dose of an antibody called L9LS changes how well the R21/Matrix-M malaria vaccine works. It planned to enroll healthy adults and infants in Mali. However, the trial was withdrawn before any participants were enrolled, so no data w…

This study aimed to see if a computer could learn to predict how long a patient would stay in a home hospital program. Researchers planned to use data from past patients to train the computer. However, the study was withdrawn before any patients were enrolled, so no results are a…

This study will test over 5,300 people in about 10 Brazilian municipalities for antibodies to the chikungunya virus before a pilot vaccination campaign with the VLA1553 vaccine. The goal is to see how many people have already been exposed to the virus and how that might affect va…

This study tracks how often people of all ages in two Liberian villages get malaria, and how many mosquitoes carry the parasite. Researchers will test blood samples monthly and collect mosquitoes from homes. The goal is to gather data that could help decide the best way to use a …

This study, run by Fudan University and local health authorities, uses computer models to predict the best way to use dengue vaccines in Yunnan, China. Researchers will collect blood samples from 220 residents to measure antibody levels and simulate different vaccination scenario…

This study looks at immune cells from people with autoimmune diseases (like lupus), people with infections, and healthy volunteers. Researchers want to understand how these cells differ and what makes them attack the body in autoimmune conditions. The study involves blood and bon…

This study reviews medical records of 200 people hospitalized with unexplained meningitis or meningoencephalitis. Researchers want to see if adding a test for tick-borne encephalitis (TBE) helps find more cases. No new drug or treatment is being tested—only the impact of a change…

This study looks at how the Takeda dengue vaccine (TAK-003) activates T-cells, a key part of the immune system. Researchers will vaccinate 30 healthy adults and analyze their T-cell and antibody responses over 26 weeks. The goal is to find reliable markers of protection, which co…